Draft-preventer.



E. A. SCHULTZ.

DRAFT PREVENTER.

APPLICATION FILED DEC. 10, 1910.

Patented Nov. 7, 1911.

ZiyJ F j l l f if? ga "II a m z a 4 mun k \\\&\\\\\ if f /7 a yaw" g A," /0 z A /r m N 2 M Maw MM WJM UNTTE ERNEST ALBERT SCHULTZ, 0F HAMILTON, ONTARIO, CANADA.

DRAFT-PREVENTER.

To all whom it may concern:

Be it known that I, ERNEST ALBERT SCHULTZ, a citizen of the Dominion of Canada, residing at Hamilton, in the county of Wentworth, Province of Ontario, Dominion of Canada, have invent-ed new and useful Improvements in Draft-Preventers, of which the following is aspecification.

This invention relates to draft preventers, and more particularly to that type in which a flap is arranged adjacent, or at, the bottom of a door or the lik and is adapted to be mechanically raised when the door is opened and closed down when the door is shut to exclude the ingress of a current of air beneath said door.

Hitherto draft preventers of the kind referred to have been arranged at the outside of the door and have been more or less complicated in construction, difficult to retain in effective operation and very likely to get out of order. I

The main objects of my invention are, first to provide an improved construction of draft preventer; second to arrange the device on, and adapt it for operation at the inside of the door; and thirdly to reduce the number of parts while at the same time insuring that the draft preventer is absolutely efiective in use.

The foregoing objects are attained by the device illustrated in the accompanying drawing, in which;

Figure 1, is a broken fragmentary view of the lower part of a door embodying the present invention. Fig. 2, is a vertical seotion on the line a, a, in Fig. 1; and Fig. 3, is a similar sectional elevation showing the door slightly open and the position occupied by the draft preventer when not in use.

Similar numerals refer to similar parts throughout the several views.

1, 1, indicate the door jambs and 2, the sill or door-step, while 3, designates the door.

According to this invention there is arranged adjacent the lower inside edge of the door 3, a wooden weather-strip 4, preferably of angular cross-section as shown, and it is to be particularly noted that its position is reversed relative to the ordinary arrangement; or, in other words, the apex 5, of the strip 4, is downwardly located instead of being upwardly positioned. This strip 4, is hingedly connected at its upper rear edge by hinges 6, 6, of any approved pattern to Specification of Letters Patent. Application filed December 10, 1910.

Patented Nov. '7, 1911. Serial No. 596,696.

the door 3, and its lower-edge 5, is so positioned as to be almost in register with the sill or door-step 2, and it is made of a length somewhat in excess of the width of the door to which it is to be applied. One end of the strip 4, is arranged in register with the inner or hinge side of the door j amb 1, and it may be chamfered -off at 7, to permit the door to swing back fully, or it may be squared off when said door opens against a wall or the like.

8, is a coil spring of any suitable strength the upper end of which is secured to the door at 9, by means of an ordinary wood screw, while the lower end of said spring 8, is attached at 10, to the front edge of the aforesaid weather-strip 4. Thus it will be seen that, the spring 8, will always tend to hold the strip 4, in the position shown by Fig. 3, when untensioned; or, in other words, said strip 4, is supported at the predetermined angle relative to the door 3. Obviously two or more such springs 8, may be employed in connection with each strip 4, or C-springs can be used, their method of fixture being self-evident to those skilled in the art without further explanation or illustration.

The outer end of the strip 4, or that part remote from the hinge side of the door 3, is

made to extend beyond the edge of said door and it is sheathed with a metal strip or angle frame 11, which is adapted when the door is closed to cooperate with a cam-piece 12, and thereby cause the said strip to be swung about its hinges 6, 6, in opposition to the spring 8, to the position indicated in Figs. 1, and 2, or flat against the lower part of the door.

The cam-piece 12, consists of a flat strip of metal bent to the shape indicated best in Figs. 2, and 3; that is to say, it is fashioned with two lugs for mortising into the door jamb l, and to which they are conveniently secured by wood-screws, 13, provided with a central part two parallel portions 14, 14, and an inclined portion 15. This cam-piece 12, is so positioned on the door 1, that its inclined portion 15, is adapted to contact with the upper surface of the metal sheath or angle-frame 11, as the door is closed and cause the weather strip to be moved in the direction of the arrow shown on Fig. 3, or toward the door. When the door 3, is fully closed the frame 11, is firmly locked and held beneath constituted by 13, as well as.

and retained by the lower portion 4, in the position seen at Fig. 2. Obviously the meeting point of the lower portion 14:, and the inclined part 15, is well rounded off to facilitate the easy turning of the strip 4.

In order to insure a perfect draft proof device there is attached by cement or tacks at the back of the weather strip 4, a length of felt or other suitable material 16, of a depth sufiicient to form a flap 17, which is adapted when the door 3, is closed to be jammed down or firmly wedged against the sill or doorstep 2, along the entire width of said door and thereby eifectivelyexclude any possibility of a draft.

From the foregoing description in connection with the drawings it will be readily understood that by the present invention a very simple and extremely effective device for the purpose specified is provided, and it is particularly to be noted that an angle bar may be readily substituted for the strip 4:, while the cam-piece 12, may be made to serve as the hasp for a bolt without in any way departing from the essential features of the invention.

I I claim,-

The combination with a door, of a weather strip presenting substantially a right angle triangle in cross section, said strip to the door at its right angular corner, a coil spring connected to the door and to the forward upper portion of the weather strip, a cam piece comprising a substantially horizontal under face and an inclined front face, the under face lying substantially in the plane of the upper face of said weather strip when the latter is in its closed position and overlying and holding said weather strip in its closed position when the door is closed and the inclined front face of the cam member riding over and de )ressing the weather strip as the door is c osed, and a strip of soft material secured to the rear face of the strip and projecting beyond the lower edge thereof.

Signed at Hamilton, Ontario, Canada, the 7th day of December 1910.

ERNEST ALBERT SCHULTZ. Witnesses:

ALFRED T. BRATTON,

Gr. NICHOLSON.

Gopies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C.

means for hinging 

